CardioVascular and Interventional Radiology

, Volume 30, Issue 5, pp 936–942

Management of Renal Tumors by Image-Guided Radiofrequency Ablation: Experience in 105 Tumors

Authors

    • Department of RadiologySouthampton University Hospitals NHS Trust
    • Department of RadiologyMailpoint 53, Southampton University Hospitals NHS Trust
  • Elizabeth E. Rutherford
    • Department of RadiologySouthampton University Hospitals NHS Trust
  • Brian Stedman
    • Department of RadiologySouthampton University Hospitals NHS Trust
  • Shuvro H. Roy-Choudhury
    • Department of RadiologyHull and East Yorkshire NHS Trust
  • James E. I. Cast
    • Department of RadiologyHull and East Yorkshire NHS Trust
  • Matthew C. Hayes
    • Department of UrologySouthampton University Hospitals NHS Trust
  • Christopher J. Smart
    • Department of UrologySouthampton University Hospitals NHS Trust
Clinical Investigation

DOI: 10.1007/s00270-007-9090-x

Cite this article as:
Breen, D.J., Rutherford, E.E., Stedman, B. et al. Cardiovasc Intervent Radiol (2007) 30: 936. doi:10.1007/s00270-007-9090-x

Abstract

Aims

In this article we present our experience with radiofrequency ablation (RFA) in the treatment of 105 renal tumors.

Materials and Methods

RFA was performed on 105 renal tumors in 97 patients, with a mean tumor size of 32 mm (11–68 mm). The mean patient age was 71.7 years (range, 36–89 years). The ablations were carried out under ultrasound (= 43) or CT (= 62) guidance. Imaging follow-up was by contrast-enhanced CT within 10 days and then at 6-monthly intervals. Multivariate analysis was performed to determine variables associated with procedural outcome.

Results

Eighty-three tumors were completely treated at a single sitting (79%). Twelve of the remaining tumors were successfully re-treated and a clinical decision was made not to re-treat seven patients. A patient with a small residual crescent of tumor is under follow-up and may require further treatment. In another patient, re-treatment was abandoned due to complicating pneumothorax and difficult access. One patient is awaiting further re-treatment. The overall technical success rate was 90.5%. Multivariate analysis revealed tumor size to be the only significant variable affecting procedural outcome. (= 0.007, Pearson χ2) Five patients had complications. There have been no local recurrences.

Conclusion

Our experience to date suggests that RFA is a safe and effective, minimally invasive treatment for small renal tumors.

Keywords

KidneyComputed tomographyKidney neoplasmsTherapeutic radiologyRadiofrequency ablation

Copyright information

© Springer Science+Business Media, LLC 2007